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  1. pharaon

    measuring output current circuit ?

    I did and my phone "infinix x605" is not listed, so I wonder how to measure the resistors of the main charger without opening it
  2. pharaon

    measuring output current circuit ?

    this is the buck converter i'm using how can i make it provide more current to charge my phone since the original adapter is sealed and i don't like to broke it, if i measure the resistance between the middle pins in the USB pot and each side of the voltage positive and negative, will...
  3. pharaon

    measuring output current circuit ?

    USB power delivery ok i didn't get this quiet, so at 5V it can support from 0.1 to 3 A based on what resistor values for each current?
  4. pharaon

    measuring output current circuit ?

    ok thanks for the information the smart phone support fast charging although when i connect it to that buck converter it charge really slow, so what can i do to make the phone charge at the full speed and draw as much current it want from the buck converter? i'll check it out thanks
  5. pharaon

    measuring output current circuit ?

    will the potentiometer do as variable load
  6. pharaon

    measuring output current circuit ?

    got your point the reason why i'm asking is i'm using this chip"DC-DC 6-24V 12V/24V to 5V 3A CAR USB Charger Module" to charge my phone at car but the charging in really really slow as it may take like 30 min to just go 2% up which make no sense for me since it says it can support up to 3A , but...
  7. pharaon

    measuring output current circuit ?

    how to measure it's current? should i use potentiometer? and what value should it be?
  8. pharaon

    measuring output current circuit ?

    is there a circuit i can do to test the maximum output current of device? like car lighter socket ? or mobile charger ? does the output current determine by the drained device or the output source value?
  9. pharaon

    led lamp failed adapter

    ok that's weird, i changed the two CAPs and tried to test the output volt , and it was the same Fluctuating value 4 to 16 DCV but then i said why not to test with my old analog meter ,and surprisingly it was 62 DCV steady, so i changed the 10μf 450v to the original 6.8μf 400V again, and...
  10. pharaon

    led lamp failed adapter

    ok the small CAP is 1μf 50v and i found a replacement for it the big CAP is 6.8 μf and what i could found is 4.7μf 400v or 10μf 450v but couldn't find 6.8 μf so which would make the replacement for it
  11. pharaon

    led lamp failed adapter

    i don't have ESR tester i'll replace it with new one not at all
  12. pharaon

    led lamp failed adapter

    Sir 73's de Edd i already desoldering C1 and tested it with DMM and it gave the right capacitance
  13. pharaon

    led lamp failed adapter

    it's
  14. pharaon

    led lamp failed adapter

    i have this lamp that start to dim and now no light so i opened it up and measure the output DC it was unstable from 4 to 16 DC Fluctuating value datasheet of the main ship and circuit schematic do you think it's the main reason? if it's and it's unavailable to get new one is there any...
  15. pharaon

    Please help in identifying this (possibly) tiny JST connector

    look at this
  16. pharaon

    Satellite receiver Power supply higher voltages output

    did i bother you in any way Bluejets
  17. pharaon

    Satellite receiver Power supply higher voltages output

    thanks for the explanation 73's de Edd and the diagram that explain the voltage flow, it really help me lot to understand those circuits
  18. pharaon

    Satellite receiver Power supply higher voltages output

    ok i changed the big cap and measure the voltage under load and now everything is fine , although i don't understand what would be the relation between the big cap and the output voltages , someone told me the cause might be the Optocoupler
  19. pharaon

    Satellite receiver Power supply higher voltages output

    yup got another one lol, the old one would make good spare parts don't you think
  20. pharaon

    Satellite receiver Power supply higher voltages output

    you mean those two resistors? UT61E
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